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Old 07-12-2018, 09:23 AM
97 SL320 97 SL320 is offline
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Join Date: Jan 2012
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Quote:
Originally Posted by fonzi View Post
The w140 seems to have good wiring. I have no damn clue about w140,

W140 both good and bad ?

Quote:
Originally Posted by fonzi View Post
and have shied away from any 90’s MB after realizing after the sale that my 1992 500sl had bad wiring inside the cabin.
Specifically, what was bad about the SL wiring?

Quote:
Originally Posted by fonzi View Post
Apparently the biodegradable wiring is everywhere in 90’s benz, not just the engine bay stuff tat everyone talks about. So no W124, r129, w140 or any of that stuff for me anymore.

The engine bay stuff fails first due to heat, under dash wiring will second in hot climates.

Dig around a bit for the wiring insulation failure dates, I "think" it was 91 through 94. Insulation failure was not limited to MB, in 1995 I had a early 80's Volvo 760 with crumbling under hood insulation. I've also been told by a dealer parts dept that Jaguar had the same problem.

Based on your intent below, the only major wiring you need to deal with is the engine to computer harness. Upgraded harnesses are made by Delphi ( GM ). The throttle actuator insulation also fails so that will need to be replaced.

If you have a hydraulic shifted trans, the conversion shouldn't be a huge ordeal. I'd expect that at most you will need to add a road speed sensor to an axle or drive shaft. This would need to be scaled by altering tooth count / speedometer calibrator box.

Quote:
Originally Posted by fonzi View Post
Anyway, I only moved forward with the purchase because it seemed the m104 was in pretty good shape, and I didn’t understand how complicated a transplant might be. I got a 5 speed 4-cyl w201 delivered in exchange for a few catalytic converters. I know a guy tat put the same trans on the same motor and put it in a 6-cyl w201. I’d be more interested in putting it into something more vintage, like:
- w108 (but m119 seems more likely here, eh?)
- w111 (sedan most likely)
- r/c107
- ponton maybe

I guess those are the majority of the chassis we’ve got, with the exception of a bunch of w126 5.0 euro and m110 Manual and a m103.

Just beating around some ideas and seeing what the performance paddock has to say. ;-)


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